<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容"
                    v-model="queryInfo.query"
                    :clearable="true"
                    @clear="getUserList">
            <el-button slot="append"
                       icon="el-icon-search"
                       @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary"
                     @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList"
                border
                stripe>
        <el-table-column type="index"
                         label="#"></el-table-column>
        <el-table-column label="姓名"
                         prop="username"></el-table-column>
        <el-table-column label="邮箱"
                         prop="email"></el-table-column>
        <el-table-column label="电话"
                         prop="mobile"></el-table-column>
        <el-table-column label="角色"
                         prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch @change="userStateChange(scope.row)"
                       v-model="scope.row.mg_state">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-button type="primary"
                       size="mini"
                       icon="el-icon-edit"
                       @click="showUpdateDialog(scope.row.id)"></el-button>
            <el-button type="danger"
                       size="mini"
                       icon="el-icon-delete"
                       @click="removeUserById(scope.row.id)"></el-button>
            <el-tooltip effect="dark"
                        :enterable="false"
                        content="分配角色"
                        placement="top">
              <el-button type="warning"
                         size="mini"
                         icon="el-icon-setting"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange"
                     @current-change="handleCurrentChange"
                     :current-page="queryInfo.pagenum"
                     :page-sizes="[1, 5, 10, 15]"
                     :page-size="queryInfo.pagesize"
                     layout="total, sizes, prev, pager, next, jumper"
                     :total="total">
      </el-pagination>
      <!-- 添加用户的对话框 -->
      <el-dialog title="添加用户"
                 :visible.sync="addDialogVisible"
                 width="50%"
                 @close="addDialogClosed">
        <!-- 内容主体区域 -->
        <el-form :model="addForm"
                 :rules="addFormRules"
                 ref="addFormRef"
                 label-width="70px">
          <el-form-item label="用户名"
                        prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码"
                        prop="password">
            <el-input v-model="addForm.password"
                      type="password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱"
                        prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机"
                        prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer"
              class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary"
                     @click="addUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 修改用户的对话框 -->
      <el-dialog title="修改用户"
                 :visible.sync="updateDialogVisible"
                 width="50%"
                 @close="updateDialogClosed">
        <!-- 内容主体区域 -->
        <el-form :model="updateForm"
                 :rules="updateFormRules"
                 ref="updateFormRef"
                 label-width="70px">
          <el-form-item label="用户名"
                        prop="username">
            <el-input v-model="updateForm.username"
                      disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱"
                        prop="email">
            <el-input v-model="updateForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机"
                        prop="mobile">
            <el-input v-model="updateForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer"
              class="dialog-footer">
          <el-button @click="updateDialogVisible = false">取 消</el-button>
          <el-button type="primary"
                     @click="updateUser">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  data () {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 获取用户列表的参数
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 5
      },
      userList: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名的长度在3~10个字符之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 3, max: 10, message: '密码的长度在6~15个字符之间', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制修改对话框的显示与隐藏
      updateDialogVisible: false,
      // 修改用户的表单数据
      updateForm: {
        username: '',
        email: '',
        mobile: ''
      },
      // 修改表单的验证规则对象
      updateFormRules: {
        username: [
          { required: false }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      }
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) { return this.$message.error('获取用户列表失败！') }
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 监听 pageSize 改变的事件
    handleSizeChange (newSize) {
      console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange (newPage) {
      console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听 switch 开关状态的改变
    async userStateChange (userInfo) {
      console.log(userInfo)
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/:${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    // 对话框的确定事件
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (valid === true) {
          const { data: res } = await this.$http.post('users', this.addForm)
          if (res.meta.status !== 201) {
            this.$message.error('添加用户失败！')
          }
          this.$message.success('添加用户成功！')
          // 隐藏添加用户的对话框
          this.addDialogVisible = false
          // 重新获取用户列表数据
          this.getUserList()
        }
      })
    },
    // 展示修改用户的对话框
    async showUpdateDialog (id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败！')
      }
      this.updateForm = res.data
      this.updateDialogVisible = true
    },
    // 监听修改用户对话框的关闭事件
    updateDialogClosed () {
      this.$refs.updateFormRef.resetFields()
    },
    // 修改用户信息模态框的确定事件
    updateUser () {
      this.$refs.updateFormRef.validate(async valid => {
        if (valid === true) {
          const { data: res } = await this.$http.put('users/' + this.updateForm.id, {
            email: this.updateForm.email,
            mobile: this.updateForm.mobile
          })
          if (res.meta.status !== 200) {
            this.$message.error('修改用户失败！')
          }
          this.$message.success('修改用户成功！')
          // 隐藏修改用户的对话框
          this.updateDialogVisible = false
          // 重新获取用户列表数据
          this.getUserList()
        }
      })
    },
    // 根据Id删除对应的用户信息
    async removeUserById (id) {
      // 询问用户是否删除数据
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // 如果用户确认删除 则返回值为字符串 confirm
      // 如果用户取消删除 则返回值为字符串 cancel
      // console.log(confirmResult)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除！')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败！')
      }
      this.$message.success('删除用户成功！')
      this.getUserList()
    }
  }
}
</script>

<style lang="less" scoped></style>
